Scientific American Supplement, No. 598, June 18, 1887 — John Shaqi
Scientific American Supplement, No. 598, June 18, 1887Various
Science
Scientific American Supplement, No. 598, June 18, 1887
Various
Science -- Periodicals
Our cut represents the corvette Greif--the latest addition to the German
fleet--on its trial trip, March 10. As other naval powers, especially
England and France, have lately built corvettes and cruisers which can
travel from 17 to 18 knots, while the fastest German boats, Blitz and
Pfeil, can make only 16 knots an hour, the chief of the Imperial Admiralty
decided to construct a corvette which should be the fastest vessel in the
world. The order was given to the ship and engine corporation "Germania,"
of Berlin and Keil, in April, 1885, the requirements being that the engines
should generate 5,400 h.p., and that the vessel, when loaded, should have a
speed of 19 knots, a point which has never been reached by any boat of its
size. The hull is made of the best German steel of Krupp's manufacture, and
measures 318 ft. in length at the water line, with a breadth of beam of 33
ft., the depth from keel to deck being 22 ft. It draws about 11 ft., and
has a displacement of 2,000 tons.
As the vessel is to be used principally as a dispatch boat and for
reconnoitering, and as--on account of its great speed--it will not be
obliged to come into conflict with larger and stronger men-of-war, no great
preparations for protection were needed, nor was it necessary that it
should be heavily armed, all available room being devoted to the engines,
boilers, and the storing of coal; these occupy more than half the length of
the vessel, leaving only space enough for the accommodation of the officers
and crew at the ends. The armament consists of five Hotchkiss revolving
guns on each side, and a 4 in. gun at each end, the latter being so
arranged that each one can sweep half the horizon.
The keel was laid in August, 1885, and the ship was launched July 29,
1886, on which occasion it was christened Greif. On the trial trip it was
found that the slender shape of the vessel adapted it for the development
of a very high rate of speed under favorable conditions, when it can make
at least 22 knots an hour, so that the speed of 19 knots an hour guaranteed
by the builders can certainly be reached, even when traveling at a
disadvantage. In spite of its great length, the Greif can be easily
maneuvered. When moving forward at full speed, it can be made to describe a
circle by proper manipulation of the rudder, and by turning one screw
forward and the other backward, the ship can be turned in a channel of its
own length.
[Illustration: THE NEW GERMAN WAR STEAMER GREIF.]
A large and rapid cruiser, also for the German navy, is being built by the
corporation "Germania". This vessel is of about the same length as the
Greif, has more than double its displacement, and will make 18 knots an
hour, an unusual rate of speed for a vessel of its class. It will be
launched by the last of the summer or early in the fall.
* * * * *
TWIN SCREW TORPEDO BOAT.
Public-domain text, read in full here on John Shaqi.
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